firmware/export/mp3_playback.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Code that has been in mpeg.c/h before, now creating an encapsulated play
  11  * data module, to be used by other sources than file playback as well.
  12  *
  13  * Copyright (C) 2004 by Linus Nielsen Feltzing
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24 #ifndef _MP3_PLAYBACK_H_
  25 #define _MP3_PLAYBACK_H_
  26
  27 #include <stdbool.h>
  28
  29 /* callback fn */
  30 #ifndef MP3_PLAY_CALLBACK_DEFINED
  31 #define MP3_PLAY_CALLBACK_DEFINED
  32 typedef void (*mp3_play_callback_t)(const void **start, size_t* size);
  33 #endif
  34
  35 /* functions formerly in mpeg.c */
  36 void mp3_init(int volume, int bass, int treble, int balance, int loudness,
  37               int avc, int channel_config, int stereo_width,
  38               int mdb_strength, int mdb_harmonics,
  39               int mdb_center, int mdb_shape, bool mdb_enable,
  40               bool superbass);
  41
  42 /* exported just for mpeg.c, to keep the recording there */
  43 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
  44 void demand_irq_enable(bool on);
  45 #endif
  46
  47 /* new functions, exported to plugin API */
  48 #if CONFIG_CODEC == MAS3587F
  49 void mp3_play_init(void);
  50 #endif
  51 void mp3_play_data(const void* start, size_t size,
  52                    mp3_play_callback_t get_more);
  53 void mp3_play_pause(bool play);
  54 bool mp3_pause_done(void);
  55 void mp3_play_stop(void);
  56 bool mp3_is_playing(void);
  57 unsigned char* mp3_get_pos(void);
  58 void mp3_shutdown(void);
  59
  60 #endif /* #ifndef _MP3_PLAYBACK_H_ */